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[bpt/emacs.git] / doc / lispref / vol2.texi
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1\input texinfo @c -*-texinfo-*-
2@c This file is used for printing the GNU Emacs Lisp Reference Manual
3@c in two volumes. It is a modified version of elisp.texi.
b3d90e46 4@c Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2001,
5df4f04c 5@c 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
561c0216 6@c Free Software Foundation, Inc.
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7@c %**start of header
8@setfilename elisp
9@settitle GNU Emacs Lisp Reference Manual: Volume 2
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10@c %**end of header
11
c85c5553 12@c See two-volume-cross-refs.txt.
cddd92e8 13@tex
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14\message{Formatting for two volume edition...Volume 2...}
15%
16% Read special toc file, set up in two-volume.make.
17\gdef\tocreadfilename{elisp2-toc-ready.toc}
18%
19% Don't make outlines, they're not needed and \readdatafile can't pay
20% attention to the special definition above.
21\global\let\pdfmakeoutlines=\relax
22%
23% Start volume 2 chapter numbering at 27; this must be listed as chapno26
24\global\chapno=26
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25@end tex
26
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27@c Version of the manual and of Emacs.
28@c Please remember to update the edition number in README as well.
e45e90b3 29@set VERSION 3.0
1f10e750 30@set EMACSVER 23.2.91
e45e90b3 31@set DATE July 2009
cddd92e8 32
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33@dircategory Emacs
34@direntry
35* Elisp: (elisp). The Emacs Lisp Reference Manual.
36@end direntry
cddd92e8 37
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38@c in general, keep the following line commented out, unless doing a
39@c copy of this manual that will be published. the manual should go
40@c onto the distribution in the full, 8.5 x 11" size.
41@set smallbook
cddd92e8 42
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43@ifset smallbook
44@smallbook
45@end ifset
cddd92e8 46
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47@c per rms and peterb, use 10pt fonts for the main text, mostly to
48@c save on paper cost.
49@c Do this inside @tex for now, so current makeinfo does not complain.
50@tex
51@ifset smallbook
52@fonttextsize 10
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53\global\let\urlcolor=\Black % don't print links in grayscale
54\global\let\linkcolor=\Black
55@end ifset
56\global\hbadness=6666 % don't worry about not-too-underfull boxes
cddd92e8 57@end tex
cddd92e8 58
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59@c Combine indices.
60@synindex cp fn
61@syncodeindex vr fn
62@syncodeindex ky fn
63@syncodeindex pg fn
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64@c We use the "type index" to index new functions and variables.
65@c @syncodeindex tp fn
66
67@copying
68This is edition @value{VERSION} of the GNU Emacs Lisp Reference Manual,@*
69corresponding to Emacs version @value{EMACSVER}.
70
71Copyright @copyright{} 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998,
5df4f04c 721999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
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73Foundation, Inc.
74
75@quotation
76Permission is granted to copy, distribute and/or modify this document
204d4665 77under the terms of the GNU Free Documentation License, Version 1.3 or
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78any later version published by the Free Software Foundation; with the
79Invariant Sections being ``GNU General Public License,'' with the
80Front-Cover texts being ``A GNU Manual,'' and with the Back-Cover
81Texts as in (a) below. A copy of the license is included in the
82section entitled ``GNU Free Documentation License.''
83
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84(a) The FSF's Back-Cover Text is: ``You have the freedom to copy and
85modify this GNU manual. Buying copies from the FSF supports it in
8d2ff239 86developing GNU and promoting software freedom.''
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87@end quotation
88@end copying
89
cddd92e8 90@titlepage
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91@title GNU Emacs Lisp Reference Manual
92@subtitle Volume 2
93@subtitle For Emacs Version @value{EMACSVER}
e45e90b3 94@subtitle Revision @value{VERSION}, @value{DATE}
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95
96@author by Bil Lewis, Dan LaLiberte, Richard Stallman
97@author and the GNU Manual Group
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98@page
99@vskip 0pt plus 1filll
c85c5553 100@insertcopying
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101
102@sp 2
103Published by the Free Software Foundation @*
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10451 Franklin St, Fifth Floor @*
105Boston, MA 02110-1301 @*
106USA @*
107ISBN 1-882114-74-4
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108
109@sp 2
110Cover art by Etienne Suvasa.
111@end titlepage
cddd92e8 112
cddd92e8 113
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114@c Print the tables of contents
115@summarycontents
116@contents
117
118
119@ifnottex
120@node Top, Introduction, (dir), (dir)
121@top Emacs Lisp
122
123This Info file contains edition @value{VERSION} of the GNU Emacs Lisp
124Reference Manual, corresponding to GNU Emacs version @value{EMACSVER}.
125@end ifnottex
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126
127@menu
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128* Introduction:: Introduction and conventions used.
129
130* Lisp Data Types:: Data types of objects in Emacs Lisp.
131* Numbers:: Numbers and arithmetic functions.
132* Strings and Characters:: Strings, and functions that work on them.
133* Lists:: Lists, cons cells, and related functions.
134* Sequences Arrays Vectors:: Lists, strings and vectors are called sequences.
135 Certain functions act on any kind of sequence.
136 The description of vectors is here as well.
c85c5553 137* Hash Tables:: Very fast lookup-tables.
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138* Symbols:: Symbols represent names, uniquely.
139
140* Evaluation:: How Lisp expressions are evaluated.
141* Control Structures:: Conditionals, loops, nonlocal exits.
142* Variables:: Using symbols in programs to stand for values.
143* Functions:: A function is a Lisp program
144 that can be invoked from other functions.
145* Macros:: Macros are a way to extend the Lisp language.
c85c5553 146* Customization:: Writing customization declarations.
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147
148* Loading:: Reading files of Lisp code into Lisp.
149* Byte Compilation:: Compilation makes programs run faster.
c85c5553 150* Advising Functions:: Adding to the definition of a function.
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151* Debugging:: Tools and tips for debugging Lisp programs.
152
153* Read and Print:: Converting Lisp objects to text and back.
154* Minibuffers:: Using the minibuffer to read input.
155* Command Loop:: How the editor command loop works,
156 and how you can call its subroutines.
157* Keymaps:: Defining the bindings from keys to commands.
158* Modes:: Defining major and minor modes.
159* Documentation:: Writing and using documentation strings.
160
161* Files:: Accessing files.
162* Backups and Auto-Saving:: Controlling how backups and auto-save
163 files are made.
164* Buffers:: Creating and using buffer objects.
165* Windows:: Manipulating windows and displaying buffers.
d24880de 166* Frames:: Making multiple system-level windows.
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167* Positions:: Buffer positions and motion functions.
168* Markers:: Markers represent positions and update
169 automatically when the text is changed.
170
171* Text:: Examining and changing text in buffers.
c85c5553 172* Non-ASCII Characters:: Non-ASCII text in buffers and strings.
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173* Searching and Matching:: Searching buffers for strings or regexps.
174* Syntax Tables:: The syntax table controls word and list parsing.
175* Abbrevs:: How Abbrev mode works, and its data structures.
176
177* Processes:: Running and communicating with subprocesses.
d24880de 178* Display:: Features for controlling the screen display.
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179* System Interface:: Getting the user id, system type, environment
180 variables, and other such things.
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181
182Appendices
183
e45e90b3 184* Antinews:: Info for users downgrading to Emacs 22.
561c0216 185* GNU Free Documentation License:: The license for this documentation.
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186* GPL:: Conditions for copying and changing GNU Emacs.
187* Tips:: Advice and coding conventions for Emacs Lisp.
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188* GNU Emacs Internals:: Building and dumping Emacs;
189 internal data structures.
190* Standard Errors:: List of all error symbols.
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191* Standard Buffer-Local Variables::
192 List of variables buffer-local in all buffers.
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193* Standard Keymaps:: List of standard keymaps.
194* Standard Hooks:: List of standard hook variables.
195
196* Index:: Index including concepts, functions, variables,
197 and other terms.
198
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199@ignore
200* New Symbols:: New functions and variables in Emacs @value{EMACSVER}.
201@end ignore
202
203@c Do NOT modify the following 3 lines! They must have this form to
204@c be correctly identified by `texinfo-multiple-files-update'. In
205@c particular, the detailed menu header line MUST be identical to the
206@c value of `texinfo-master-menu-header'. See texnfo-upd.el.
207
208@detailmenu
209 --- The Detailed Node Listing ---
210 ---------------------------------
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211
212Here are other nodes that are inferiors of those already listed,
213mentioned here so you can get to them in one step:
214
215Introduction
216
217* Caveats:: Flaws and a request for help.
218* Lisp History:: Emacs Lisp is descended from Maclisp.
219* Conventions:: How the manual is formatted.
c85c5553 220* Version Info:: Which Emacs version is running?
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221* Acknowledgements:: The authors, editors, and sponsors of this manual.
222
223Conventions
224
225* Some Terms:: Explanation of terms we use in this manual.
226* nil and t:: How the symbols @code{nil} and @code{t} are used.
227* Evaluation Notation:: The format we use for examples of evaluation.
561c0216 228* Printing Notation:: The format we use when examples print text.
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229* Error Messages:: The format we use for examples of errors.
230* Buffer Text Notation:: The format we use for buffer contents in examples.
231* Format of Descriptions:: Notation for describing functions, variables, etc.
232
233Format of Descriptions
234
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235* A Sample Function Description:: A description of an imaginary
236 function, @code{foo}.
237* A Sample Variable Description:: A description of an imaginary
238 variable, @code{electric-future-map}.
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239
240Lisp Data Types
241
242* Printed Representation:: How Lisp objects are represented as text.
243* Comments:: Comments and their formatting conventions.
244* Programming Types:: Types found in all Lisp systems.
245* Editing Types:: Types specific to Emacs.
c85c5553 246* Circular Objects:: Read syntax for circular structure.
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247* Type Predicates:: Tests related to types.
248* Equality Predicates:: Tests of equality between any two objects.
249
250Programming Types
251
252* Integer Type:: Numbers without fractional parts.
253* Floating Point Type:: Numbers with fractional parts and with a large range.
254* Character Type:: The representation of letters, numbers and
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255 control characters.
256* Symbol Type:: A multi-use object that refers to a function,
561c0216 257 variable, or property list, and has a unique identity.
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258* Sequence Type:: Both lists and arrays are classified as sequences.
259* Cons Cell Type:: Cons cells, and lists (which are made from cons cells).
260* Array Type:: Arrays include strings and vectors.
261* String Type:: An (efficient) array of characters.
262* Vector Type:: One-dimensional arrays.
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263* Char-Table Type:: One-dimensional sparse arrays indexed by characters.
264* Bool-Vector Type:: One-dimensional arrays of @code{t} or @code{nil}.
265* Hash Table Type:: Super-fast lookup tables.
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266* Function Type:: A piece of executable code you can call from elsewhere.
267* Macro Type:: A method of expanding an expression into another
268 expression, more fundamental but less pretty.
269* Primitive Function Type:: A function written in C, callable from Lisp.
270* Byte-Code Type:: A function written in Lisp, then compiled.
271* Autoload Type:: A type used for automatically loading seldom-used
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272 functions.
273
274Character Type
cddd92e8 275
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276* Basic Char Syntax:: Syntax for regular characters.
277* General Escape Syntax:: How to specify characters by their codes.
278* Ctl-Char Syntax:: Syntax for control characters.
279* Meta-Char Syntax:: Syntax for meta-characters.
280* Other Char Bits:: Syntax for hyper-, super-, and alt-characters.
cddd92e8 281
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282Cons Cell and List Types
283
284* Box Diagrams:: Drawing pictures of lists.
561c0216 285* Dotted Pair Notation:: A general syntax for cons cells.
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286* Association List Type:: A specially constructed list.
287
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288String Type
289
290* Syntax for Strings:: How to specify Lisp strings.
291* Non-ASCII in Strings:: International characters in strings.
292* Nonprinting Characters:: Literal unprintable characters in strings.
293* Text Props and Strings:: Strings with text properties.
294
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295Editing Types
296
297* Buffer Type:: The basic object of editing.
cddd92e8 298* Marker Type:: A position in a buffer.
561c0216 299* Window Type:: Buffers are displayed in windows.
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300* Frame Type:: Windows subdivide frames.
301* Terminal Type:: A terminal device displays frames.
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302* Window Configuration Type:: Recording the way a frame is subdivided.
303* Frame Configuration Type:: Recording the status of all frames.
e45e90b3 304* Process Type:: A subprocess of Emacs running on the underlying OS.
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305* Stream Type:: Receive or send characters.
306* Keymap Type:: What function a keystroke invokes.
c85c5553 307* Overlay Type:: How an overlay is represented.
e45e90b3 308* Font Type:: Fonts for displaying text.
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309
310Numbers
311
c85c5553 312* Integer Basics:: Representation and range of integers.
d24880de 313* Float Basics:: Representation and range of floating point.
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314* Predicates on Numbers:: Testing for numbers.
315* Comparison of Numbers:: Equality and inequality predicates.
d24880de 316* Numeric Conversions:: Converting float to integer and vice versa.
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317* Arithmetic Operations:: How to add, subtract, multiply and divide.
318* Rounding Operations:: Explicitly rounding floating point numbers.
319* Bitwise Operations:: Logical and, or, not, shifting.
320* Math Functions:: Trig, exponential and logarithmic functions.
321* Random Numbers:: Obtaining random integers, predictable or not.
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322
323Strings and Characters
324
325* String Basics:: Basic properties of strings and characters.
326* Predicates for Strings:: Testing whether an object is a string or char.
327* Creating Strings:: Functions to allocate new strings.
c85c5553 328* Modifying Strings:: Altering the contents of an existing string.
cddd92e8 329* Text Comparison:: Comparing characters or strings.
561c0216 330* String Conversion:: Converting to and from characters and strings.
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331* Formatting Strings:: @code{format}: Emacs's analogue of @code{printf}.
332* Case Conversion:: Case conversion functions.
d24880de 333* Case Tables:: Customizing case conversion.
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334
335Lists
336
337* Cons Cells:: How lists are made out of cons cells.
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338* List-related Predicates:: Is this object a list? Comparing two lists.
339* List Elements:: Extracting the pieces of a list.
340* Building Lists:: Creating list structure.
c85c5553 341* List Variables:: Modifying lists stored in variables.
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342* Modifying Lists:: Storing new pieces into an existing list.
343* Sets And Lists:: A list can represent a finite mathematical set.
344* Association Lists:: A list can represent a finite relation or mapping.
c85c5553 345* Rings:: Managing a fixed-size ring of objects.
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346
347Modifying Existing List Structure
348
349* Setcar:: Replacing an element in a list.
350* Setcdr:: Replacing part of the list backbone.
351 This can be used to remove or add elements.
352* Rearrangement:: Reordering the elements in a list; combining lists.
353
354Sequences, Arrays, and Vectors
355
356* Sequence Functions:: Functions that accept any kind of sequence.
357* Arrays:: Characteristics of arrays in Emacs Lisp.
358* Array Functions:: Functions specifically for arrays.
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359* Vectors:: Special characteristics of Emacs Lisp vectors.
360* Vector Functions:: Functions specifically for vectors.
361* Char-Tables:: How to work with char-tables.
362* Bool-Vectors:: How to work with bool-vectors.
363
364Hash Tables
365
366* Creating Hash:: Functions to create hash tables.
367* Hash Access:: Reading and writing the hash table contents.
561c0216 368* Defining Hash:: Defining new comparison methods.
c85c5553 369* Other Hash:: Miscellaneous.
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370
371Symbols
372
373* Symbol Components:: Symbols have names, values, function definitions
374 and property lists.
375* Definitions:: A definition says how a symbol will be used.
376* Creating Symbols:: How symbols are kept unique.
377* Property Lists:: Each symbol has a property list
378 for recording miscellaneous information.
379
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380Property Lists
381
382* Plists and Alists:: Comparison of the advantages of property
383 lists and association lists.
384* Symbol Plists:: Functions to access symbols' property lists.
385* Other Plists:: Accessing property lists stored elsewhere.
386
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387Evaluation
388
389* Intro Eval:: Evaluation in the scheme of things.
cddd92e8 390* Forms:: How various sorts of objects are evaluated.
177c0ea7 391* Quoting:: Avoiding evaluation (to put constants in
cddd92e8 392 the program).
c85c5553 393* Eval:: How to invoke the Lisp interpreter explicitly.
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394
395Kinds of Forms
396
397* Self-Evaluating Forms:: Forms that evaluate to themselves.
398* Symbol Forms:: Symbols evaluate as variables.
399* Classifying Lists:: How to distinguish various sorts of list forms.
c85c5553 400* Function Indirection:: When a symbol appears as the car of a list,
d24880de 401 we find the real function via the symbol.
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402* Function Forms:: Forms that call functions.
403* Macro Forms:: Forms that call macros.
2b9fa4a7 404* Special Forms:: "Special forms" are idiosyncratic primitives,
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405 most of them extremely important.
406* Autoloading:: Functions set up to load files
407 containing their real definitions.
408
409Control Structures
410
411* Sequencing:: Evaluation in textual order.
c85c5553 412* Conditionals:: @code{if}, @code{cond}, @code{when}, @code{unless}.
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413* Combining Conditions:: @code{and}, @code{or}, @code{not}.
414* Iteration:: @code{while} loops.
415* Nonlocal Exits:: Jumping out of a sequence.
416
417Nonlocal Exits
418
419* Catch and Throw:: Nonlocal exits for the program's own purposes.
420* Examples of Catch:: Showing how such nonlocal exits can be written.
421* Errors:: How errors are signaled and handled.
422* Cleanups:: Arranging to run a cleanup form if an
423 error happens.
424
425Errors
426
427* Signaling Errors:: How to report an error.
428* Processing of Errors:: What Emacs does when you report an error.
429* Handling Errors:: How you can trap errors and continue execution.
430* Error Symbols:: How errors are classified for trapping them.
431
432Variables
433
434* Global Variables:: Variable values that exist permanently, everywhere.
435* Constant Variables:: Certain "variables" have values that never change.
436* Local Variables:: Variable values that exist only temporarily.
437* Void Variables:: Symbols that lack values.
438* Defining Variables:: A definition says a symbol is used as a variable.
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439* Tips for Defining:: Things you should think about when you
440 define a variable.
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441* Accessing Variables:: Examining values of variables whose names
442 are known only at run time.
443* Setting Variables:: Storing new values in variables.
444* Variable Scoping:: How Lisp chooses among local and global values.
445* Buffer-Local Variables:: Variable values in effect only in one buffer.
c85c5553 446* File Local Variables:: Handling local variable lists in files.
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447* Directory Local Variables:: Local variables common to all files in a
448 directory.
e45e90b3 449* Frame-Local Variables:: Frame-local bindings for variables.
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450* Variable Aliases:: Variables that are aliases for other variables.
451* Variables with Restricted Values:: Non-constant variables whose value can
452 @emph{not} be an arbitrary Lisp object.
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453
454Scoping Rules for Variable Bindings
455
177c0ea7 456* Scope:: Scope means where in the program a value
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457 is visible. Comparison with other languages.
458* Extent:: Extent means how long in time a value exists.
459* Impl of Scope:: Two ways to implement dynamic scoping.
177c0ea7 460* Using Scoping:: How to use dynamic scoping carefully and
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461 avoid problems.
462
463Buffer-Local Variables
464
465* Intro to Buffer-Local:: Introduction and concepts.
466* Creating Buffer-Local:: Creating and destroying buffer-local bindings.
467* Default Value:: The default value is seen in buffers
c85c5553 468 that don't have their own buffer-local values.
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469
470Functions
471
561c0216 472* What Is a Function:: Lisp functions vs. primitives; terminology.
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473* Lambda Expressions:: How functions are expressed as Lisp objects.
474* Function Names:: A symbol can serve as the name of a function.
475* Defining Functions:: Lisp expressions for defining functions.
476* Calling Functions:: How to use an existing function.
477* Mapping Functions:: Applying a function to each element of a list, etc.
561c0216 478* Anonymous Functions:: Lambda expressions are functions with no names.
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479* Function Cells:: Accessing or setting the function definition
480 of a symbol.
c85c5553 481* Obsolete Functions:: Declaring functions obsolete.
d24880de 482* Inline Functions:: Defining functions that the compiler
561c0216 483 will open code.
d24880de 484* Declaring Functions:: Telling the compiler that a function is defined.
c85c5553 485* Function Safety:: Determining whether a function is safe to call.
cddd92e8 486* Related Topics:: Cross-references to specific Lisp primitives
177c0ea7 487 that have a special bearing on how
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488 functions work.
489
490Lambda Expressions
491
492* Lambda Components:: The parts of a lambda expression.
493* Simple Lambda:: A simple example.
494* Argument List:: Details and special features of argument lists.
495* Function Documentation:: How to put documentation in a function.
496
497Macros
498
499* Simple Macro:: A basic example.
500* Expansion:: How, when and why macros are expanded.
501* Compiling Macros:: How macros are expanded by the compiler.
502* Defining Macros:: How to write a macro definition.
503* Backquote:: Easier construction of list structure.
504* Problems with Macros:: Don't evaluate the macro arguments too many times.
505 Don't hide the user's variables.
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506* Indenting Macros:: Specifying how to indent macro calls.
507
508Common Problems Using Macros
509
510* Wrong Time:: Do the work in the expansion, not in the macro.
511* Argument Evaluation:: The expansion should evaluate each macro arg once.
512* Surprising Local Vars:: Local variable bindings in the expansion
513 require special care.
514* Eval During Expansion:: Don't evaluate them; put them in the expansion.
515* Repeated Expansion:: Avoid depending on how many times expansion is done.
516
517Writing Customization Definitions
518
519* Common Keywords:: Common keyword arguments for all kinds of
520 customization declarations.
521* Group Definitions:: Writing customization group definitions.
522* Variable Definitions:: Declaring user options.
523* Customization Types:: Specifying the type of a user option.
524
525Customization Types
526
527* Simple Types:: Simple customization types: sexp, integer, number,
528 string, file, directory, alist.
529* Composite Types:: Build new types from other types or data.
530* Splicing into Lists:: Splice elements into list with @code{:inline}.
531* Type Keywords:: Keyword-argument pairs in a customization type.
532* Defining New Types:: Give your type a name.
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533
534Loading
535
536* How Programs Do Loading:: The @code{load} function and others.
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537* Load Suffixes:: Details about the suffixes that @code{load} tries.
538* Library Search:: Finding a library to load.
539* Loading Non-ASCII:: Non-@acronym{ASCII} characters in Emacs Lisp files.
cddd92e8 540* Autoload:: Setting up a function to autoload.
cddd92e8 541* Repeated Loading:: Precautions about loading a file twice.
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542* Named Features:: Loading a library if it isn't already loaded.
543* Where Defined:: Finding which file defined a certain symbol.
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544* Unloading:: How to "unload" a library that was loaded.
545* Hooks for Loading:: Providing code to be run when
546 particular libraries are loaded.
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547
548Byte Compilation
549
c85c5553 550* Speed of Byte-Code:: An example of speedup from byte compilation.
cddd92e8 551* Compilation Functions:: Byte compilation functions.
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552* Docs and Compilation:: Dynamic loading of documentation strings.
553* Dynamic Loading:: Dynamic loading of individual functions.
554* Eval During Compile:: Code to be evaluated when you compile.
555* Compiler Errors:: Handling compiler error messages.
d24880de 556* Byte-Code Objects:: The data type used for byte-compiled functions.
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557* Disassembly:: Disassembling byte-code; how to read byte-code.
558
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559Advising Emacs Lisp Functions
560
561* Simple Advice:: A simple example to explain the basics of advice.
562* Defining Advice:: Detailed description of @code{defadvice}.
563* Around-Advice:: Wrapping advice around a function's definition.
564* Computed Advice:: ...is to @code{defadvice} as @code{fset} is to @code{defun}.
565* Activation of Advice:: Advice doesn't do anything until you activate it.
566* Enabling Advice:: You can enable or disable each piece of advice.
567* Preactivation:: Preactivation is a way of speeding up the
568 loading of compiled advice.
569* Argument Access in Advice:: How advice can access the function's arguments.
570* Advising Primitives:: Accessing arguments when advising a primitive.
571* Combined Definition:: How advice is implemented.
572
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573Debugging Lisp Programs
574
575* Debugger:: How the Emacs Lisp debugger is implemented.
c85c5553 576* Edebug:: A source-level Emacs Lisp debugger.
cddd92e8 577* Syntax Errors:: How to find syntax errors.
c85c5553 578* Test Coverage:: Ensuring you have tested all branches in your code.
177c0ea7 579* Compilation Errors:: How to find errors that show up in
cddd92e8 580 byte compilation.
177c0ea7 581
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582The Lisp Debugger
583
584* Error Debugging:: Entering the debugger when an error happens.
d24880de 585* Infinite Loops:: Stopping and debugging a program that doesn't exit.
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586* Function Debugging:: Entering it when a certain function is called.
587* Explicit Debug:: Entering it at a certain point in the program.
588* Using Debugger:: What the debugger does; what you see while in it.
589* Debugger Commands:: Commands used while in the debugger.
590* Invoking the Debugger:: How to call the function @code{debug}.
591* Internals of Debugger:: Subroutines of the debugger, and global variables.
592
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593Edebug
594
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595* Using Edebug:: Introduction to use of Edebug.
596* Instrumenting:: You must instrument your code
597 in order to debug it with Edebug.
c85c5553 598* Edebug Execution Modes:: Execution modes, stopping more or less often.
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599* Jumping:: Commands to jump to a specified place.
600* Edebug Misc:: Miscellaneous commands.
601* Breaks:: Setting breakpoints to make the program stop.
602* Trapping Errors:: Trapping errors with Edebug.
603* Edebug Views:: Views inside and outside of Edebug.
604* Edebug Eval:: Evaluating expressions within Edebug.
605* Eval List:: Expressions whose values are displayed
606 each time you enter Edebug.
607* Printing in Edebug:: Customization of printing.
608* Trace Buffer:: How to produce trace output in a buffer.
609* Coverage Testing:: How to test evaluation coverage.
610* The Outside Context:: Data that Edebug saves and restores.
c85c5553 611* Edebug and Macros:: Specifying how to handle macro calls.
d24880de 612* Edebug Options:: Option variables for customizing Edebug.
c85c5553 613
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614Breaks
615
616* Breakpoints:: Breakpoints at stop points.
617* Global Break Condition:: Breaking on an event.
618* Source Breakpoints:: Embedding breakpoints in source code.
619
620The Outside Context
621
622* Checking Whether to Stop::When Edebug decides what to do.
623* Edebug Display Update:: When Edebug updates the display.
624* Edebug Recursive Edit:: When Edebug stops execution.
625
626Edebug and Macros
627
628* Instrumenting Macro Calls::The basic problem.
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629* Specification List:: How to specify complex patterns of evaluation.
630* Backtracking:: What Edebug does when matching fails.
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631* Specification Examples:: To help understand specifications.
632
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633Debugging Invalid Lisp Syntax
634
635* Excess Open:: How to find a spurious open paren or missing close.
636* Excess Close:: How to find a spurious close paren or missing open.
637
638Reading and Printing Lisp Objects
639
640* Streams Intro:: Overview of streams, reading and printing.
177c0ea7 641* Input Streams:: Various data types that can be used as
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642 input streams.
643* Input Functions:: Functions to read Lisp objects from text.
177c0ea7 644* Output Streams:: Various data types that can be used as
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645 output streams.
646* Output Functions:: Functions to print Lisp objects as text.
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647* Output Variables:: Variables that control what the printing
648 functions do.
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649
650Minibuffers
651
652* Intro to Minibuffers:: Basic information about minibuffers.
653* Text from Minibuffer:: How to read a straight text string.
654* Object from Minibuffer:: How to read a Lisp object or expression.
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655* Minibuffer History:: Recording previous minibuffer inputs
656 so the user can reuse them.
c85c5553 657* Initial Input:: Specifying initial contents for the minibuffer.
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658* Completion:: How to invoke and customize completion.
659* Yes-or-No Queries:: Asking a question with a simple answer.
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660* Multiple Queries:: Asking a series of similar questions.
661* Reading a Password:: Reading a password from the terminal.
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662* Minibuffer Commands:: Commands used as key bindings in minibuffers.
663* Minibuffer Contents:: How such commands access the minibuffer text.
664* Minibuffer Windows:: Operating on the special minibuffer windows.
665* Recursive Mini:: Whether recursive entry to minibuffer is allowed.
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666* Minibuffer Misc:: Various customization hooks and variables.
667
668Completion
669
670* Basic Completion:: Low-level functions for completing strings.
671 (These are too low level to use the minibuffer.)
672* Minibuffer Completion:: Invoking the minibuffer with completion.
673* Completion Commands:: Minibuffer commands that do completion.
674* High-Level Completion:: Convenient special cases of completion
a3cb6daa 675 (reading buffer name, file name, etc.).
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676* Reading File Names:: Using completion to read file names and
677 shell commands.
678* Completion Styles:: Specifying rules for performing completion.
561c0216 679* Programmed Completion:: Writing your own completion-function.
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680
681Command Loop
682
683* Command Overview:: How the command loop reads commands.
684* Defining Commands:: Specifying how a function should read arguments.
685* Interactive Call:: Calling a command, so that it will read arguments.
e45e90b3 686* Distinguish Interactive:: Making a command distinguish interactive calls.
cddd92e8 687* Command Loop Info:: Variables set by the command loop for you to examine.
c85c5553 688* Adjusting Point:: Adjustment of point after a command.
d24880de 689* Input Events:: What input looks like when you read it.
cddd92e8 690* Reading Input:: How to read input events from the keyboard or mouse.
c85c5553 691* Special Events:: Events processed immediately and individually.
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692* Waiting:: Waiting for user input or elapsed time.
693* Quitting:: How @kbd{C-g} works. How to catch or defer quitting.
694* Prefix Command Arguments:: How the commands to set prefix args work.
695* Recursive Editing:: Entering a recursive edit,
696 and why you usually shouldn't.
697* Disabling Commands:: How the command loop handles disabled commands.
698* Command History:: How the command history is set up, and how accessed.
699* Keyboard Macros:: How keyboard macros are implemented.
700
701Defining Commands
702
703* Using Interactive:: General rules for @code{interactive}.
704* Interactive Codes:: The standard letter-codes for reading arguments
705 in various ways.
706* Interactive Examples:: Examples of how to read interactive arguments.
707
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708Input Events
709
710* Keyboard Events:: Ordinary characters--keys with symbols on them.
711* Function Keys:: Function keys--keys with names, not symbols.
712* Mouse Events:: Overview of mouse events.
713* Click Events:: Pushing and releasing a mouse button.
714* Drag Events:: Moving the mouse before releasing the button.
715* Button-Down Events:: A button was pushed and not yet released.
716* Repeat Events:: Double and triple click (or drag, or down).
717* Motion Events:: Just moving the mouse, not pushing a button.
718* Focus Events:: Moving the mouse between frames.
719* Misc Events:: Other events the system can generate.
720* Event Examples:: Examples of the lists for mouse events.
721* Classifying Events:: Finding the modifier keys in an event symbol.
561c0216 722 Event types.
d24880de 723* Accessing Mouse:: Functions to extract info from mouse events.
e45e90b3 724* Accessing Scroll:: Functions to get info from scroll bar events.
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725* Strings of Events:: Special considerations for putting
726 keyboard character events in a string.
727
728Reading Input
729
730* Key Sequence Input:: How to read one key sequence.
731* Reading One Event:: How to read just one event.
732* Event Mod:: How Emacs modifies events as they are read.
733* Invoking the Input Method:: How reading an event uses the input method.
734* Quoted Character Input:: Asking the user to specify a character.
735* Event Input Misc:: How to reread or throw away input events.
736
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737Keymaps
738
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739* Key Sequences:: Key sequences as Lisp objects.
740* Keymap Basics:: Basic concepts of keymaps.
741* Format of Keymaps:: What a keymap looks like as a Lisp object.
742* Creating Keymaps:: Functions to create and copy keymaps.
743* Inheritance and Keymaps:: How one keymap can inherit the bindings
744 of another keymap.
745* Prefix Keys:: Defining a key with a keymap as its definition.
746* Active Keymaps:: How Emacs searches the active keymaps
747 for a key binding.
748* Searching Keymaps:: A pseudo-Lisp summary of searching active maps.
749* Controlling Active Maps:: Each buffer has a local keymap
750 to override the standard (global) bindings.
751 A minor mode can also override them.
561c0216 752* Key Lookup:: Finding a key's binding in one keymap.
cddd92e8 753* Functions for Key Lookup:: How to request key lookup.
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754* Changing Key Bindings:: Redefining a key in a keymap.
755* Remapping Commands:: A keymap can translate one command to another.
756* Translation Keymaps:: Keymaps for translating sequences of events.
757* Key Binding Commands:: Interactive interfaces for redefining keys.
758* Scanning Keymaps:: Looking through all keymaps, for printing help.
561c0216 759* Menu Keymaps:: Defining a menu as a keymap.
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760
761Menu Keymaps
762
763* Defining Menus:: How to make a keymap that defines a menu.
764* Mouse Menus:: How users actuate the menu with the mouse.
765* Keyboard Menus:: How users actuate the menu with the keyboard.
766* Menu Example:: Making a simple menu.
767* Menu Bar:: How to customize the menu bar.
768* Tool Bar:: A tool bar is a row of images.
769* Modifying Menus:: How to add new items to a menu.
770
771Defining Menus
772
773* Simple Menu Items:: A simple kind of menu key binding,
774 limited in capabilities.
775* Extended Menu Items:: More powerful menu item definitions
776 let you specify keywords to enable
777 various features.
778* Menu Separators:: Drawing a horizontal line through a menu.
779* Alias Menu Items:: Using command aliases in menu items.
780
781Major and Minor Modes
782
783* Hooks:: How to use hooks; how to write code that provides hooks.
784* Major Modes:: Defining major modes.
785* Minor Modes:: Defining minor modes.
786* Mode Line Format:: Customizing the text that appears in the mode line.
787* Imenu:: How a mode can provide a menu
788 of definitions in the buffer.
789* Font Lock Mode:: How modes can highlight text according to syntax.
790* Desktop Save Mode:: How modes can have buffer state saved between
791 Emacs sessions.
cddd92e8 792
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793Hooks
794
795* Running Hooks:: How to run a hook.
796* Setting Hooks:: How to put functions on a hook, or remove them.
797
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798Major Modes
799
c85c5553 800* Major Mode Basics::
cddd92e8 801* Major Mode Conventions:: Coding conventions for keymaps, etc.
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802* Auto Major Mode:: How Emacs chooses the major mode automatically.
803* Mode Help:: Finding out how to use a mode.
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804* Derived Modes:: Defining a new major mode based on another major
805 mode.
806* Generic Modes:: Defining a simple major mode that supports
807 comment syntax and Font Lock mode.
808* Mode Hooks:: Hooks run at the end of major mode functions.
561c0216 809* Example Major Modes:: Text mode and Lisp modes.
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810
811Minor Modes
812
813* Minor Mode Conventions:: Tips for writing a minor mode.
814* Keymaps and Minor Modes:: How a minor mode can have its own keymap.
c85c5553 815* Defining Minor Modes:: A convenient facility for defining minor modes.
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816
817Mode Line Format
818
561c0216 819* Mode Line Basics:: Basic ideas of mode line control.
cddd92e8 820* Mode Line Data:: The data structure that controls the mode line.
561c0216 821* Mode Line Top:: The top level variable, mode-line-format.
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822* Mode Line Variables:: Variables used in that data structure.
823* %-Constructs:: Putting information into a mode line.
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824* Properties in Mode:: Using text properties in the mode line.
825* Header Lines:: Like a mode line, but at the top.
826* Emulating Mode Line:: Formatting text as the mode line would.
827
828Font Lock Mode
829
830* Font Lock Basics:: Overview of customizing Font Lock.
831* Search-based Fontification:: Fontification based on regexps.
832* Customizing Keywords:: Customizing search-based fontification.
833* Other Font Lock Variables:: Additional customization facilities.
834* Levels of Font Lock:: Each mode can define alternative levels
835 so that the user can select more or less.
836* Precalculated Fontification:: How Lisp programs that produce the buffer
837 contents can also specify how to fontify it.
838* Faces for Font Lock:: Special faces specifically for Font Lock.
839* Syntactic Font Lock:: Fontification based on syntax tables.
840* Setting Syntax Properties:: Defining character syntax based on context
841 using the Font Lock mechanism.
842* Multiline Font Lock:: How to coerce Font Lock into properly
843 highlighting multiline constructs.
844
845Multiline Font Lock Constructs
846
561c0216 847* Font Lock Multiline:: Marking multiline chunks with a text property.
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848* Region to Fontify:: Controlling which region gets refontified
849 after a buffer change.
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850
851Documentation
852
853* Documentation Basics:: Good style for doc strings.
854 Where to put them. How Emacs stores them.
855* Accessing Documentation:: How Lisp programs can access doc strings.
856* Keys in Documentation:: Substituting current key bindings.
857* Describing Characters:: Making printable descriptions of
858 non-printing characters and key sequences.
859* Help Functions:: Subroutines used by Emacs help facilities.
860
861Files
862
863* Visiting Files:: Reading files into Emacs buffers for editing.
864* Saving Buffers:: Writing changed buffers back into files.
561c0216 865* Reading from Files:: Reading files into buffers without visiting.
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866* Writing to Files:: Writing new files from parts of buffers.
867* File Locks:: Locking and unlocking files, to prevent
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868 simultaneous editing by two people.
869* Information about Files:: Testing existence, accessibility, size of files.
870* Changing Files:: Renaming files, changing protection, etc.
871* File Names:: Decomposing and expanding file names.
872* Contents of Directories:: Getting a list of the files in a directory.
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873* Create/Delete Dirs:: Creating and Deleting Directories.
874* Magic File Names:: Defining "magic" special handling
875 for certain file names.
c85c5553 876* Format Conversion:: Conversion to and from various file formats.
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877
878Visiting Files
879
880* Visiting Functions:: The usual interface functions for visiting.
881* Subroutines of Visiting:: Lower-level subroutines that they use.
882
883Information about Files
884
885* Testing Accessibility:: Is a given file readable? Writable?
c85c5553 886* Kinds of Files:: Is it a directory? A symbolic link?
d24880de 887* Truenames:: Eliminating symbolic links from a file name.
cddd92e8 888* File Attributes:: How large is it? Any other names? Etc.
c85c5553 889* Locating Files:: How to find a file in standard places.
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890
891File Names
892
893* File Name Components:: The directory part of a file name, and the rest.
561c0216 894* Relative File Names:: Some file names are relative to a current directory.
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895* Directory Names:: A directory's name as a directory
896 is different from its name as a file.
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897* File Name Expansion:: Converting relative file names to absolute ones.
898* Unique File Names:: Generating names for temporary files.
899* File Name Completion:: Finding the completions for a given file name.
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900* Standard File Names:: If your package uses a fixed file name,
901 how to handle various operating systems simply.
cddd92e8 902
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GM
903File Format Conversion
904
a3cb6daa 905* Format Conversion Overview:: @code{insert-file-contents} and @code{write-region}.
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GM
906* Format Conversion Round-Trip:: Using @code{format-alist}.
907* Format Conversion Piecemeal:: Specifying non-paired conversion.
908
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909Backups and Auto-Saving
910
177c0ea7 911* Backup Files:: How backup files are made; how their names
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EZ
912 are chosen.
913* Auto-Saving:: How auto-save files are made; how their
914 names are chosen.
177c0ea7 915* Reverting:: @code{revert-buffer}, and how to customize
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EZ
916 what it does.
917
918Backup Files
919
920* Making Backups:: How Emacs makes backup files, and when.
177c0ea7 921* Rename or Copy:: Two alternatives: renaming the old file
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922 or copying it.
923* Numbered Backups:: Keeping multiple backups for each source file.
924* Backup Names:: How backup file names are computed; customization.
925
926Buffers
927
928* Buffer Basics:: What is a buffer?
c85c5553 929* Current Buffer:: Designating a buffer as current
561c0216 930 so that primitives will access its contents.
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931* Buffer Names:: Accessing and changing buffer names.
932* Buffer File Name:: The buffer file name indicates which file
933 is visited.
934* Buffer Modification:: A buffer is @dfn{modified} if it needs to be saved.
935* Modification Time:: Determining whether the visited file was changed
c85c5553 936 ``behind Emacs's back''.
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937* Read Only Buffers:: Modifying text is not allowed in a
938 read-only buffer.
939* The Buffer List:: How to look at all the existing buffers.
940* Creating Buffers:: Functions that create buffers.
941* Killing Buffers:: Buffers exist until explicitly killed.
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942* Indirect Buffers:: An indirect buffer shares text with some
943 other buffer.
e45e90b3 944* Swapping Text:: Swapping text between two buffers.
c85c5553 945* Buffer Gap:: The gap in the buffer.
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946
947Windows
948
949* Basic Windows:: Basic information on using windows.
950* Splitting Windows:: Splitting one window into two windows.
951* Deleting Windows:: Deleting a window gives its space to other windows.
952* Selecting Windows:: The selected window is the one that you edit in.
953* Cyclic Window Ordering:: Moving around the existing windows.
954* Buffers and Windows:: Each window displays the contents of a buffer.
c85c5553 955* Displaying Buffers:: Higher-level functions for displaying a buffer
cddd92e8 956 and choosing a window for it.
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957* Choosing Window:: How to choose a window for displaying a buffer.
958* Dedicated Windows:: How to avoid displaying another buffer in
e45e90b3 959 a specific window.
cddd92e8 960* Window Point:: Each window has its own location of point.
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961* Window Start and End:: Buffer positions indicating which text is
962 on-screen in a window.
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963* Textual Scrolling:: Moving text up and down through the window.
964* Vertical Scrolling:: Moving the contents up and down on the window.
965* Horizontal Scrolling:: Moving the contents sideways on the window.
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966* Size of Window:: Accessing the size of a window.
967* Resizing Windows:: Changing the size of a window.
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968* Coordinates and Windows:: Converting coordinates to windows.
969* Window Tree:: The layout and sizes of all windows in a frame.
cddd92e8 970* Window Configurations:: Saving and restoring the state of the screen.
e45e90b3 971* Window Parameters:: Associating additional information with windows.
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972* Window Hooks:: Hooks for scrolling, window size changes,
973 redisplay going past a certain point,
974 or window configuration changes.
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975
976Frames
977
d24880de 978* Creating Frames:: Creating additional frames.
e45e90b3 979* Multiple Terminals:: Displaying on several different devices.
d24880de 980* Frame Parameters:: Controlling frame size, position, font, etc.
e45e90b3 981* Terminal Parameters:: Parameters common for all frames on terminal.
cddd92e8 982* Frame Titles:: Automatic updating of frame titles.
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983* Deleting Frames:: Frames last until explicitly deleted.
984* Finding All Frames:: How to examine all existing frames.
985* Frames and Windows:: A frame contains windows;
986 display of text always works through windows.
cddd92e8 987* Minibuffers and Frames:: How a frame finds the minibuffer to use.
d24880de 988* Input Focus:: Specifying the selected frame.
cddd92e8 989* Visibility of Frames:: Frames may be visible or invisible, or icons.
c85c5553 990* Raising and Lowering:: Raising a frame makes it hide other windows;
d24880de 991 lowering it makes the others hide it.
cddd92e8 992* Frame Configurations:: Saving the state of all frames.
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993* Mouse Tracking:: Getting events that say when the mouse moves.
994* Mouse Position:: Asking where the mouse is, or moving it.
995* Pop-Up Menus:: Displaying a menu for the user to select from.
cddd92e8 996* Dialog Boxes:: Displaying a box to ask yes or no.
c85c5553 997* Pointer Shape:: Specifying the shape of the mouse pointer.
561c0216 998* Window System Selections::Transferring text to and from other X clients.
c85c5553 999* Drag and Drop:: Internals of Drag-and-Drop implementation.
d24880de 1000* Color Names:: Getting the definitions of color names.
c85c5553 1001* Text Terminal Colors:: Defining colors for text-only terminals.
d24880de 1002* Resources:: Getting resource values from the server.
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1003* Display Feature Testing:: Determining the features of a terminal.
1004
1005Frame Parameters
1006
1007* Parameter Access:: How to change a frame's parameters.
d24880de 1008* Initial Parameters:: Specifying frame parameters when you make a frame.
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1009* Window Frame Parameters:: List of frame parameters for window systems.
1010* Size and Position:: Changing the size and position of a frame.
1011* Geometry:: Parsing geometry specifications.
1012
1013Window Frame Parameters
1014
1015* Basic Parameters:: Parameters that are fundamental.
1016* Position Parameters:: The position of the frame on the screen.
1017* Size Parameters:: Frame's size.
1018* Layout Parameters:: Size of parts of the frame, and
1019 enabling or disabling some parts.
1020* Buffer Parameters:: Which buffers have been or should be shown.
1021* Management Parameters:: Communicating with the window manager.
1022* Cursor Parameters:: Controlling the cursor appearance.
561c0216 1023* Font and Color Parameters:: Fonts and colors for the frame text.
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1024
1025Positions
1026
1027* Point:: The special position where editing takes place.
1028* Motion:: Changing point.
1029* Excursions:: Temporary motion and buffer changes.
1030* Narrowing:: Restricting editing to a portion of the buffer.
1031
1032Motion
1033
1034* Character Motion:: Moving in terms of characters.
1035* Word Motion:: Moving in terms of words.
1036* Buffer End Motion:: Moving to the beginning or end of the buffer.
1037* Text Lines:: Moving in terms of lines of text.
1038* Screen Lines:: Moving in terms of lines as displayed.
1039* List Motion:: Moving by parsing lists and sexps.
1040* Skipping Characters:: Skipping characters belonging to a certain set.
1041
1042Markers
1043
1044* Overview of Markers:: The components of a marker, and how it relocates.
1045* Predicates on Markers:: Testing whether an object is a marker.
1046* Creating Markers:: Making empty markers or markers at certain places.
561c0216 1047* Information from Markers::Finding the marker's buffer or character position.
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1048* Marker Insertion Types:: Two ways a marker can relocate when you
1049 insert where it points.
1050* Moving Markers:: Moving the marker to a new buffer or position.
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1051* The Mark:: How "the mark" is implemented with a marker.
1052* The Region:: How to access "the region".
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1053
1054Text
1055
1056* Near Point:: Examining text in the vicinity of point.
1057* Buffer Contents:: Examining text in a general fashion.
c85c5553 1058* Comparing Text:: Comparing substrings of buffers.
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1059* Insertion:: Adding new text to a buffer.
1060* Commands for Insertion:: User-level commands to insert text.
1061* Deletion:: Removing text from a buffer.
1062* User-Level Deletion:: User-level commands to delete text.
1063* The Kill Ring:: Where removed text sometimes is saved for
1064 later use.
1065* Undo:: Undoing changes to the text of a buffer.
c85c5553 1066* Maintaining Undo:: How to enable and disable undo information.
d24880de 1067 How to control how much information is kept.
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1068* Filling:: Functions for explicit filling.
1069* Margins:: How to specify margins for filling commands.
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1070* Adaptive Fill:: Adaptive Fill mode chooses a fill prefix
1071 from context.
1072* Auto Filling:: How auto-fill mode is implemented to break lines.
cddd92e8 1073* Sorting:: Functions for sorting parts of the buffer.
cddd92e8 1074* Columns:: Computing horizontal positions, and using them.
c85c5553 1075* Indentation:: Functions to insert or adjust indentation.
cddd92e8 1076* Case Changes:: Case conversion of parts of the buffer.
c85c5553 1077* Text Properties:: Assigning Lisp property lists to text characters.
cddd92e8 1078* Substitution:: Replacing a given character wherever it appears.
c85c5553 1079* Transposition:: Swapping two portions of a buffer.
cddd92e8
EZ
1080* Registers:: How registers are implemented. Accessing
1081 the text or position stored in a register.
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KB
1082* Base 64:: Conversion to or from base 64 encoding.
1083* MD5 Checksum:: Compute the MD5 "message digest"/"checksum".
1084* Atomic Changes:: Installing several buffer changes "atomically".
1085* Change Hooks:: Supplying functions to be run when text is changed.
177c0ea7 1086
cddd92e8
EZ
1087The Kill Ring
1088
1089* Kill Ring Concepts:: What text looks like in the kill ring.
1090* Kill Functions:: Functions that kill text.
c85c5553 1091* Yanking:: How yanking is done.
cddd92e8 1092* Yank Commands:: Commands that access the kill ring.
d24880de 1093* Low-Level Kill Ring:: Functions and variables for kill ring access.
561c0216 1094* Internals of Kill Ring:: Variables that hold kill ring data.
cddd92e8
EZ
1095
1096Indentation
1097
1098* Primitive Indent:: Functions used to count and insert indentation.
1099* Mode-Specific Indent:: Customize indentation for different modes.
1100* Region Indent:: Indent all the lines in a region.
1101* Relative Indent:: Indent the current line based on previous lines.
1102* Indent Tabs:: Adjustable, typewriter-like tab stops.
1103* Motion by Indent:: Move to first non-blank character.
1104
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1105Text Properties
1106
1107* Examining Properties:: Looking at the properties of one character.
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GM
1108* Changing Properties:: Setting the properties of a range of text.
1109* Property Search:: Searching for where a property changes value.
1110* Special Properties:: Particular properties with special meanings.
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1111* Format Properties:: Properties for representing formatting of text.
1112* Sticky Properties:: How inserted text gets properties from
1113 neighboring text.
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1114* Lazy Properties:: Computing text properties in a lazy fashion
1115 only when text is examined.
1116* Clickable Text:: Using text properties to make regions of text
1117 do something when you click on them.
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KB
1118* Fields:: The @code{field} property defines
1119 fields within the buffer.
d24880de
GM
1120* Not Intervals:: Why text properties do not use
1121 Lisp-visible text intervals.
c85c5553 1122
561c0216 1123Non-@acronym{ASCII} Characters
c85c5553 1124
561c0216 1125* Text Representations:: How Emacs represents text.
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1126* Converting Representations:: Converting unibyte to multibyte and vice versa.
1127* Selecting a Representation:: Treating a byte sequence as unibyte or multi.
1128* Character Codes:: How unibyte and multibyte relate to
1129 codes of individual characters.
e45e90b3
GM
1130* Character Properties:: Character attributes that define their
1131 behavior and handling.
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1132* Character Sets:: The space of possible character codes
1133 is divided into various character sets.
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KB
1134* Scanning Charsets:: Which character sets are used in a buffer?
1135* Translation of Characters:: Translation tables are used for conversion.
1136* Coding Systems:: Coding systems are conversions for saving files.
1137* Input Methods:: Input methods allow users to enter various
1138 non-ASCII characters without special keyboards.
1139* Locales:: Interacting with the POSIX locale.
1140
1141Coding Systems
1142
1143* Coding System Basics:: Basic concepts.
1144* Encoding and I/O:: How file I/O functions handle coding systems.
1145* Lisp and Coding Systems:: Functions to operate on coding system names.
1146* User-Chosen Coding Systems:: Asking the user to choose a coding system.
1147* Default Coding Systems:: Controlling the default choices.
1148* Specifying Coding Systems:: Requesting a particular coding system
1149 for a single file operation.
1150* Explicit Encoding:: Encoding or decoding text without doing I/O.
1151* Terminal I/O Encoding:: Use of encoding for terminal I/O.
1152* MS-DOS File Types:: How DOS "text" and "binary" files
1153 relate to coding systems.
1154
cddd92e8
EZ
1155Searching and Matching
1156
1157* String Search:: Search for an exact match.
c85c5553 1158* Searching and Case:: Case-independent or case-significant searching.
cddd92e8
EZ
1159* Regular Expressions:: Describing classes of strings.
1160* Regexp Search:: Searching for a match for a regexp.
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KB
1161* POSIX Regexps:: Searching POSIX-style for the longest match.
1162* Match Data:: Finding out which part of the text matched,
1163 after a string or regexp search.
d24880de 1164* Search and Replace:: Commands that loop, searching and replacing.
cddd92e8 1165* Standard Regexps:: Useful regexps for finding sentences, pages,...
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EZ
1166
1167Regular Expressions
1168
1169* Syntax of Regexps:: Rules for writing regular expressions.
1170* Regexp Example:: Illustrates regular expression syntax.
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KB
1171* Regexp Functions:: Functions for operating on regular expressions.
1172
1173Syntax of Regular Expressions
1174
1175* Regexp Special:: Special characters in regular expressions.
1176* Char Classes:: Character classes used in regular expressions.
1177* Regexp Backslash:: Backslash-sequences in regular expressions.
1178
1179The Match Data
1180
d24880de 1181* Replacing Match:: Replacing a substring that was matched.
c85c5553 1182* Simple Match Data:: Accessing single items of match data,
d24880de 1183 such as where a particular subexpression started.
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KB
1184* Entire Match Data:: Accessing the entire match data at once, as a list.
1185* Saving Match Data:: Saving and restoring the match data.
cddd92e8
EZ
1186
1187Syntax Tables
1188
c85c5553 1189* Syntax Basics:: Basic concepts of syntax tables.
cddd92e8
EZ
1190* Syntax Descriptors:: How characters are classified.
1191* Syntax Table Functions:: How to create, examine and alter syntax tables.
c85c5553 1192* Syntax Properties:: Overriding syntax with text properties.
d24880de 1193* Motion and Syntax:: Moving over characters with certain syntaxes.
cddd92e8
EZ
1194* Parsing Expressions:: Parsing balanced expressions
1195 using the syntax table.
1196* Standard Syntax Tables:: Syntax tables used by various major modes.
1197* Syntax Table Internals:: How syntax table information is stored.
c85c5553 1198* Categories:: Another way of classifying character syntax.
cddd92e8
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1199
1200Syntax Descriptors
1201
1202* Syntax Class Table:: Table of syntax classes.
1203* Syntax Flags:: Additional flags each character can have.
1204
c85c5553
KB
1205Parsing Expressions
1206
1207* Motion via Parsing:: Motion functions that work by parsing.
1208* Position Parse:: Determining the syntactic state of a position.
1209* Parser State:: How Emacs represents a syntactic state.
1210* Low-Level Parsing:: Parsing across a specified region.
1211* Control Parsing:: Parameters that affect parsing.
1212
561c0216 1213Abbrevs and Abbrev Expansion
cddd92e8
EZ
1214
1215* Abbrev Mode:: Setting up Emacs for abbreviation.
c85c5553 1216* Abbrev Tables:: Creating and working with abbrev tables.
cddd92e8 1217* Defining Abbrevs:: Specifying abbreviations and their expansions.
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KB
1218* Abbrev Files:: Saving abbrevs in files.
1219* Abbrev Expansion:: Controlling expansion; expansion subroutines.
cddd92e8 1220* Standard Abbrev Tables:: Abbrev tables used by various major modes.
561c0216
GM
1221* Abbrev Properties:: How to read and set abbrev properties.
1222 Which properties have which effect.
1223* Abbrev Table Properties:: How to read and set abbrev table properties.
1224 Which properties have which effect.
cddd92e8
EZ
1225
1226Processes
1227
1228* Subprocess Creation:: Functions that start subprocesses.
c85c5553 1229* Shell Arguments:: Quoting an argument to pass it to a shell.
cddd92e8
EZ
1230* Synchronous Processes:: Details of using synchronous subprocesses.
1231* Asynchronous Processes:: Starting up an asynchronous subprocess.
1232* Deleting Processes:: Eliminating an asynchronous subprocess.
1233* Process Information:: Accessing run-status and other attributes.
1234* Input to Processes:: Sending input to an asynchronous subprocess.
1235* Signals to Processes:: Stopping, continuing or interrupting
1236 an asynchronous subprocess.
1237* Output from Processes:: Collecting output from an asynchronous subprocess.
1238* Sentinels:: Sentinels run when process run-status changes.
c85c5553 1239* Query Before Exit:: Whether to query if exiting will kill a process.
e45e90b3 1240* System Processes:: Accessing other processes running on your system.
c85c5553 1241* Transaction Queues:: Transaction-based communication with subprocesses.
cddd92e8 1242* Network:: Opening network connections.
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KB
1243* Network Servers:: Network servers let Emacs accept net connections.
1244* Datagrams:: UDP network connections.
1245* Low-Level Network:: Lower-level but more general function
1246 to create connections and servers.
561c0216
GM
1247* Misc Network:: Additional relevant functions for
1248 network connections.
e45e90b3 1249* Serial Ports:: Communicating with serial ports.
c85c5553 1250* Byte Packing:: Using bindat to pack and unpack binary data.
cddd92e8
EZ
1251
1252Receiving Output from Processes
1253
1254* Process Buffers:: If no filter, output is put in a buffer.
1255* Filter Functions:: Filter functions accept output from the process.
c85c5553 1256* Decoding Output:: Filters can get unibyte or multibyte strings.
cddd92e8
EZ
1257* Accepting Output:: How to wait until process output arrives.
1258
c85c5553
KB
1259Low-Level Network Access
1260
561c0216
GM
1261* Network Processes:: Using @code{make-network-process}.
1262* Network Options:: Further control over network connections.
1263* Network Feature Testing:: Determining which network features work on
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KB
1264 the machine you are using.
1265
1266Packing and Unpacking Byte Arrays
1267
1268* Bindat Spec:: Describing data layout.
1269* Bindat Functions:: Doing the unpacking and packing.
1270* Bindat Examples:: Samples of what bindat.el can do for you!
1271
1272Emacs Display
1273
1274* Refresh Screen:: Clearing the screen and redrawing everything on it.
1275* Forcing Redisplay:: Forcing redisplay.
1276* Truncation:: Folding or wrapping long text lines.
1277* The Echo Area:: Displaying messages at the bottom of the screen.
1278* Warnings:: Displaying warning messages for the user.
1279* Invisible Text:: Hiding part of the buffer text.
1280* Selective Display:: Hiding part of the buffer text (the old way).
1281* Temporary Displays:: Displays that go away automatically.
d24880de 1282* Overlays:: Use overlays to highlight parts of the buffer.
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1283* Width:: How wide a character or string is on the screen.
1284* Line Height:: Controlling the height of lines.
d24880de 1285* Faces:: A face defines a graphics style
c85c5553
KB
1286 for text characters: font, colors, etc.
1287* Fringes:: Controlling window fringes.
1288* Scroll Bars:: Controlling vertical scroll bars.
1289* Display Property:: Enabling special display features.
1290* Images:: Displaying images in Emacs buffers.
1291* Buttons:: Adding clickable buttons to Emacs buffers.
1292* Abstract Display:: Emacs' Widget for Object Collections.
1293* Blinking:: How Emacs shows the matching open parenthesis.
d24880de 1294* Usual Display:: The usual conventions for displaying
561c0216 1295 nonprinting chars.
d24880de 1296* Display Tables:: How to specify other conventions.
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1297* Beeping:: Audible signal to the user.
1298* Window Systems:: Which window system is being used.
1299
1300The Echo Area
1301
1302* Displaying Messages:: Explicitly displaying text in the echo area.
1303* Progress:: Informing user about progress of a long operation.
1304* Logging Messages:: Echo area messages are logged for the user.
1305* Echo Area Customization:: Controlling the echo area.
1306
1307Reporting Warnings
1308
1309* Warning Basics:: Warnings concepts and functions to report them.
561c0216
GM
1310* Warning Variables:: Variables programs bind to customize
1311 their warnings.
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KB
1312* Warning Options:: Variables users set to control display of warnings.
1313
1314Overlays
1315
1316* Managing Overlays:: Creating and moving overlays.
1317* Overlay Properties:: How to read and set properties.
d24880de 1318 What properties do to the screen display.
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KB
1319* Finding Overlays:: Searching for overlays.
1320
1321Faces
1322
1323* Defining Faces:: How to define a face with @code{defface}.
1324* Face Attributes:: What is in a face?
1325* Attribute Functions:: Functions to examine and set face attributes.
1326* Displaying Faces:: How Emacs combines the faces specified for
1327 a character.
e45e90b3 1328* Face Remapping:: Remapping faces to alternative definitions.
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KB
1329* Face Functions:: How to define and examine faces.
1330* Auto Faces:: Hook for automatic face assignment.
e45e90b3 1331* Font Selection:: Finding the best available font for a face.
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KB
1332* Font Lookup:: Looking up the names of available fonts
1333 and information about them.
1334* Fontsets:: A fontset is a collection of fonts
1335 that handle a range of character sets.
561c0216 1336* Low-Level Font:: Lisp representation for character display fonts.
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KB
1337
1338Fringes
1339
1340* Fringe Size/Pos:: Specifying where to put the window fringes.
1341* Fringe Indicators:: Displaying indicator icons in the window fringes.
1342* Fringe Cursors:: Displaying cursors in the right fringe.
1343* Fringe Bitmaps:: Specifying bitmaps for fringe indicators.
1344* Customizing Bitmaps:: Specifying your own bitmaps to use in the fringes.
1345* Overlay Arrow:: Display of an arrow to indicate position.
1346
1347The @code{display} Property
1348
561c0216 1349* Replacing Specs:: Display specs that replace the text.
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1350* Specified Space:: Displaying one space with a specified width.
1351* Pixel Specification:: Specifying space width or height in pixels.
1352* Other Display Specs:: Displaying an image; magnifying text; moving it
1353 up or down on the page; adjusting the width
1354 of spaces within text.
1355* Display Margins:: Displaying text or images to the side of
1356 the main text.
1357
1358Images
1359
561c0216 1360* Image Formats:: Supported image formats.
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KB
1361* Image Descriptors:: How to specify an image for use in @code{:display}.
1362* XBM Images:: Special features for XBM format.
1363* XPM Images:: Special features for XPM format.
1364* GIF Images:: Special features for GIF format.
561c0216 1365* TIFF Images:: Special features for TIFF format.
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1366* PostScript Images:: Special features for PostScript format.
1367* Other Image Types:: Various other formats are supported.
1368* Defining Images:: Convenient ways to define an image for later use.
1369* Showing Images:: Convenient ways to display an image once
1370 it is defined.
1371* Image Cache:: Internal mechanisms of image display.
1372
1373Buttons
1374
1375* Button Properties:: Button properties with special meanings.
1376* Button Types:: Defining common properties for classes of buttons.
1377* Making Buttons:: Adding buttons to Emacs buffers.
1378* Manipulating Buttons:: Getting and setting properties of buttons.
1379* Button Buffer Commands:: Buffer-wide commands and bindings for buttons.
1380
1381Abstract Display
1382
1383* Abstract Display Functions:: Functions in the Ewoc package.
1384* Abstract Display Example:: Example of using Ewoc.
1385
1386Display Tables
1387
1388* Display Table Format:: What a display table consists of.
1389* Active Display Table:: How Emacs selects a display table to use.
1390* Glyphs:: How to define a glyph, and what glyphs mean.
1391
cddd92e8
EZ
1392Operating System Interface
1393
561c0216 1394* Starting Up:: Customizing Emacs startup processing.
cddd92e8
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1395* Getting Out:: How exiting works (permanent or temporary).
1396* System Environment:: Distinguish the name and kind of system.
c85c5553 1397* User Identification:: Finding the name and user id of the user.
d24880de 1398* Time of Day:: Getting the current time.
561c0216
GM
1399* Time Conversion:: Converting a time from numeric form to
1400 calendrical data and vice versa.
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KB
1401* Time Parsing:: Converting a time from numeric form to text
1402 and vice versa.
1403* Processor Run Time:: Getting the run time used by Emacs.
1404* Time Calculations:: Adding, subtracting, comparing times, etc.
d24880de 1405* Timers:: Setting a timer to call a function at a
561c0216 1406 certain time.
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KB
1407* Idle Timers:: Setting a timer to call a function when Emacs has
1408 been idle for a certain length of time.
1409* Terminal Input:: Accessing and recording terminal input.
1410* Terminal Output:: Controlling and recording terminal output.
1411* Sound Output:: Playing sounds on the computer's speaker.
a3cb6daa 1412* X11 Keysyms:: Operating on key symbols for X Windows.
cddd92e8 1413* Batch Mode:: Running Emacs without terminal interaction.
561c0216
GM
1414* Session Management:: Saving and restoring state with
1415 X Session Management.
cddd92e8
EZ
1416
1417Starting Up Emacs
1418
561c0216
GM
1419* Startup Summary:: Sequence of actions Emacs performs at startup.
1420* Init File:: Details on reading the init file.
cddd92e8 1421* Terminal-Specific:: How the terminal-specific Lisp file is read.
c85c5553 1422* Command-Line Arguments:: How command-line arguments are processed,
cddd92e8
EZ
1423 and how you can customize them.
1424
c85c5553 1425Getting Out of Emacs
cddd92e8
EZ
1426
1427* Killing Emacs:: Exiting Emacs irreversibly.
1428* Suspending Emacs:: Exiting Emacs reversibly.
1429
c85c5553 1430Terminal Input
cddd92e8 1431
d24880de
GM
1432* Input Modes:: Options for how input is processed.
1433* Recording Input:: Saving histories of recent or all input events.
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KB
1434
1435Tips and Conventions
1436
1437* Coding Conventions:: Conventions for clean and robust programs.
1438* Key Binding Conventions:: Which keys should be bound by which programs.
1439* Programming Tips:: Making Emacs code fit smoothly in Emacs.
1440* Compilation Tips:: Making compiled code run fast.
1441* Warning Tips:: Turning off compiler warnings.
1442* Documentation Tips:: Writing readable documentation strings.
d24880de 1443* Comment Tips:: Conventions for writing comments.
c85c5553 1444* Library Headers:: Standard headers for library packages.
cddd92e8
EZ
1445
1446GNU Emacs Internals
1447
c85c5553 1448* Building Emacs:: How the dumped Emacs is made.
cddd92e8
EZ
1449* Pure Storage:: A kludge to make preloaded Lisp functions sharable.
1450* Garbage Collection:: Reclaiming space for Lisp objects no longer used.
c85c5553 1451* Memory Usage:: Info about total size of Lisp objects made so far.
cddd92e8 1452* Writing Emacs Primitives:: Writing C code for Emacs.
c85c5553 1453* Object Internals:: Data formats of buffers, windows, processes.
cddd92e8
EZ
1454
1455Object Internals
1456
1457* Buffer Internals:: Components of a buffer structure.
1458* Window Internals:: Components of a window structure.
1459* Process Internals:: Components of a process structure.
c85c5553 1460@end detailmenu
cddd92e8
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1461@end menu
1462
cddd92e8
EZ
1463@c include intro.texi
1464@c include objects.texi
1465@c include numbers.texi
1466@c include strings.texi
1467
1468@c include lists.texi
1469@c include sequences.texi
c85c5553 1470@c include hash.texi
cddd92e8
EZ
1471@c include symbols.texi
1472@c include eval.texi
1473
1474@c include control.texi
1475@c include variables.texi
1476@c include functions.texi
1477@c include macros.texi
1478
c85c5553 1479@c include customize.texi
cddd92e8
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1480@c include loading.texi
1481@c include compile.texi
c85c5553
KB
1482@c include advice.texi
1483
561c0216 1484@c This includes edebug.texi.
cddd92e8
EZ
1485@c include debugging.texi
1486@c include streams.texi
cddd92e8
EZ
1487@c include minibuf.texi
1488@c include commands.texi
c85c5553 1489
cddd92e8
EZ
1490@c include keymaps.texi
1491@c include modes.texi
c85c5553
KB
1492@c include help.texi
1493@c include files.texi
cddd92e8 1494
c85c5553 1495@c include backups.texi
cddd92e8 1496
c85c5553 1497@c ================ Beginning of Volume 2 ================
cddd92e8 1498@include buffers.texi
cddd92e8
EZ
1499@include windows.texi
1500@include frames.texi
c85c5553 1501
cddd92e8
EZ
1502@include positions.texi
1503@include markers.texi
1504@include text.texi
c85c5553 1505@include nonascii.texi
cddd92e8
EZ
1506
1507@include searching.texi
1508@include syntax.texi
1509@include abbrevs.texi
cddd92e8 1510@include processes.texi
c85c5553 1511
cddd92e8 1512@include display.texi
c85c5553 1513@include os.texi
cddd92e8
EZ
1514
1515@c MOVE to Emacs Manual: include misc-modes.texi
1516
1517@c appendices
1518
1519@c REMOVE this: include non-hacker.texi
1520
c85c5553
KB
1521@include anti.texi
1522@include doclicense.texi
1523@include gpl.texi
cddd92e8
EZ
1524@include tips.texi
1525@include internals.texi
1526@include errors.texi
1527@include locals.texi
1528@include maps.texi
1529@include hooks.texi
1530
c85c5553 1531@include index.texi
cddd92e8 1532
c85c5553
KB
1533@ignore
1534@node New Symbols, , Index, Top
1535@unnumbered New Symbols Since the Previous Edition
1536
1537@printindex tp
1538@end ignore
cddd92e8
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1539
1540@bye
1541
1542\f
1543These words prevent "local variables" above from confusing Emacs.
ab5796a9
MB
1544
1545@ignore
55debb81 1546 arch-tag: dfdbecf8-fec2-49c1-8427-3e8ac8b0b849
ab5796a9 1547@end ignore